Anti-vandalism shielded facility for the injection of inhibitor fluids and other chemicals associated to pipeline transport of hydrocarbon and other valuable fluids

ABSTRACT

The comprehensive anti-vandalism shielded facility system for injection systems, includes the construction of a security shielded facility, which is a thick and solid structure built with steel rods and reinforced concrete of considerable thicknesses which have as a purpose to prevent access to third-parties that could conduct acts of vandalism. The shielded facility is built with highly resistant concrete that is able to withstand the impact caused by common tools used for acts of vandalism.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Mexican Patent Application No. MX/a/2013/001908, filed Feb. 18, 2013 the disclosure of which is incorporated in its entirety by reference herein.

TECHNICAL FIELD

The present invention includes design and construction of a vandalism defense and protection shielded facility for the components of an injection system composed by pump, inhibitor storage tank, and a solar energy source, and also including injection systems for other chemicals associated to pipeline hydrocarbon transport such as surfactants and other flow improvers. The application of the invention is specific for injection systems for inhibitor fluid and other chemicals associated to pipeline hydrocarbon transport located in unpopulated areas or places with high risk of vandalism.

The purpose of the invention is to provide operation, maintenance and security to the injection system for inhibitor fluid and associated chemicals, and other chemicals associated to pipeline hydrocarbon transport, by means of limiting access to authorized personnel only, preventing third parties with vandalism intent from accessing the system.

OBJECTIVE OF THE INVENTION

The main objective of this invention is to protect the elements of a solar powered injection system for inhibitor fluid or other pipeline hydrocarbon transport associated chemicals; by building a shielded facility and a well, using specific acrylic materials and electric shutters for the protection of the solar panels that power the system.

The security system includes the construction of a security bunker, for safekeeping and protection, built with steel rods and reinforced concrete of considerable thicknesses, making it a robust and solid structure.

The hatch that provides access to the inhibitor fluid and other associated chemicals injection system has an unconventional way to open. This hatch was created with the purpose of making it difficult for third-parties with intent of vandalism, to access the system.

BACKGROUND

A corrosion inhibitor fluid can be defined as a product that acts by forming a film over a metal surface or by delivering electrons to the medium. The use of inhibitor fluids is recommended in cases that require better control of the so called interior corrosion on hydrocarbon transport systems. The storage and application of these inhibitors is conducted through the inhibitor fluid injection system.

A chemical injection system generally consists of one or more chemical or inhibitor fluid storage tanks, a mixing container (if needed), a pump and an injection pipe. The storage tanks must be under constant monitoring in order to check content levels, preventing either overflow or the inhibitor fluid or the chemical running out.

These systems may be applied to various processes that range from oil industry to water treatment. These systems inject large amounts of chemical compounds into these processes. Some of these may be biocides, corrosion inhibitors, methanol, additives, etc. The injection points for the inhibitor fluid must be placed at the origin of the pipeline. This is the reason why many injection systems are located in unpopulated or faraway locations, making them easy targets for vandalism.

There are other chemicals that are used in the pipeline hydrocarbon transport industry. Among them are the surfactants, which improve the flow of the hydrocarbon as it circulates the pipeline. These chemicals are introduced using an injection system, therefore they also often become victims of vandalism.

Vandalism problems related to injection systems for inhibitor fluids and other chemicals, have increased in these past years. This is mostly due to the price increase of the materials and components of the injection system, along with poverty and social issues.

This security system resolves the problem above by protecting the inhibitor fluid and other associated chemicals injection system, as well as its solar power source by building a security shielded facility for safekeeping and protection, that houses a reinforced steel structure and highly impact-resistant materials, making it impenetrable for rudimentary tools, turning it completely impregnable; third-party access is automatically restricted by its opening system, as well as by including acrylic materials and electric shutters to protect the solar panels, providing extra protection for the injection system.

Other patents have been found, for example, a watering nozzle anti-vandalism System (ES1030934U, ES1030935U) as well as one for public pay phones (BRMU8103399U); however these inventions cannot be applied to the protection of an inhibitor fluid injection system, given that they are designed for the protection of other specific pieces of equipment. Other patents have been found for protection of cathodic protection systems (U.S. Pat. No. 4,515,669, U.S. Pat. No. 4,504,375, U.S. Pat. No. 6,193,443B1, U.S. Pat. No. 6,461,082, U.S. Pat. No. 4,089,767, U.S. Pat. No. 6,331,242B1, U.S. Pat. No. 6,214,203B1, U.S. Pat. No. 4,175,021, U.S. Pat. No. 6,744,265B2 U.S. Pat. No. 3,868,313, U.S. Pat. No. 4,169,028, U.S. Pat. No. 5,305,631) however, these patents are not applicable to an inhibitor fluid injection system.

Therefore, a review of the literature and intellectual property databases does not reveal the existence of inventions that provide integrated protection for an inhibitor fluid and other chemicals injection system with a solar power source.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A-1B, are both isometric views of the anti-vandalism shielded facility with all of its components, including: 1) Shutter; 2) Solar panels; 3) Shielded facility; 4) Basement; 5) Access gate; 6) Ventilation shafts.

FIG. 1C, is a frontal view of the anti-vandalism shielded facility.

FIGS. 2A-2B, are both isometric and frontal views of the lower section of the anti-vandalism shielded facility, where the components of the inhibitor fluid and chemicals associated to the oil industry injection system are located, including: 7) access hatch; 8) Chemical tank; 9) Chemical filter; 10) Calibrator; 11) Pump; 12) Manometer; 13) Gas ventilation pipe; 14) Flow gauge; 15) Injection pipe.

DETAILED DESCRIPTION OF THE INVENTION

The invention's purpose is the protection of an inhibitor fluid and other pipeline hydrocarbon transport associated chemicals injection system by the construction of a shielded facility (FIGS. 1A, 1B and 1C), a security well (FIGS. 2A and 2B), including a highly impact-resistant steel and reinforced concrete structure that make it impregnable to impact of rudimentary tools, that may be used either for vandalism purposes or accidentally. The perpetrators of vandalism activities usually improvise as they proceed with very limited tools such as hammers and bars. Therefore a height of the shielded facility over 4 m would prevent the climbing to the solar panel zone. The solar panel sheet covered with dark or gray polymer firmly glued to the shielded facility roof is of choice to discourage theft, as it would imply the destruction of most of the solar sheet material. The invention also includes shock-resistant acrylic panels as well as electric metallic shutters that (1) protect the solar panels (2) that power the entire system.

The roof inclination and slope are determined according the geographical site. The shielded facility is a steel structure made of reinforced concrete (3). Having a dual structure of half-inch diameter rods forming a cage, which properly placed, at a height of 2.9 meters max, forming a grid of 20 cm max. With these specifications we guarantee that the structure will be able to withstand rudimentary tools used for vandalism purposes.

The access gate is made of steel (5) and it is to be located at a height about 1.5 m above the ground level. The ladder to reach the gate is portable by the shielded facility operator. The gate opens through a pneumatic system that uses an array of holes that activate the stems of pistons using a combination that will activate from outside, in order to access the shielded facility. The gate must have vertical shaft support on the structure itself on one of the vertical ends, in order to leave only one part showing towards the outside. This helps to prevent weak spots from being found, that may be used to gain access.

The lower section of the shielded facility (FIG. 2) must be at a height of 1.40 m above ground in order to prevent flooding problems. Just like the upper section, the lower section of the shielded facility must include an array of steel and concrete rods that will help prevent vandalism problems due to the design of the shielded facility and the thicknesses of the walls. In addition, the mix of materials and concrete will prevent water filtration.

All of the injection system components are located inside the lower section of the shielded facility: Chemical tank (9), chemical filter (10), calibrator (11), pump (12), manometer (13), flow gauge (15) and injection pipe (16). The tank and the pump are fixed to the floor by concrete structures, providing better protection against vandalism. Another element located in the lower section is the gas ventilation pipe (14) which runs all the way through to the upper section of the shielded facility right next to the solar panels. A convection activated type of ventilation inside the bunker is provided by two horizontal layers of 5 to 10 cm cylindrical cavities one at the bottom and other at the top.

The injection system is solar powered, therefore the solar panels (2) must be placed at an angle determined by the latitude of the country or region where they are installed. The wiring of this system is installed inside the shielded facility, to prevent theft.

The solar panels could be installed as shown in FIG. 1A wherein the design of the roof is made in order to cover the solar panel from the view of third parties and prevent on this way the steal of this element. The FIG. 1B presents an option to prevent the decrease the efficiency of the solar panels avoiding the shadows that could be present due the position of sun.

To prevent the theft of the solar panels, they must be installed with an acrylic cover compliant with specific features, as mentioned in the claims section herein. Another security device, to prevent solar panel theft is the use of electric shutters (1) that are specifically designed for protection of solar panels. 

What is claimed is:
 1. A shielded facility made of reinforced concrete, to protect an inhibitor and chemicals injection system used in the transportation of hydrocarbon by pipeline, having a dual structure of half-inch diameter rods forming a cage, which properly placed, at a height of 2.9 meters max, forming a grid of 20 cm max, built to withstand impact of tools used for vandalism purposes.
 2. The shielded facility according to claim 1, wherein a lower section or basement used for protection of the inhibitor fluid storage tank, injection pump and injection pipe, either for injection fluid or another chemical used for pipeline hydrocarbon transport, providing access to this lower section through a hatch protected by a round steel cover that prevents access to third parties that could cause vandalism issues.
 3. The shielded facility according to claim 1, wherein having an access gate made of steel located at a height about 1.5 m above the ground level and includes a pneumatic system that uses an array of holes that activate the stems of pistons using a combination that will activate from outside, in order to access the shielded facility.
 4. The shielded facility according to claim 1, further comprising panels for powering of the entire injection system, these panels can be protected by acrylic, with specific features: they must work continually in temperatures ranging from 170°-190° F., being 2 to 10 times stronger than double resistance glass, 92% light transmission capability, as well as being capable of filtering between 80-90% of the harmful UV light that ranges between 250-400 nanometers of wavelength.
 5. The shielded facility according to claim 1, wherein besides having acrylic based protection, includes an electric shutter that must open automatically and remain closed overnight. This shutter must be built by a structural metallic material, which provides better protection from weather problems such as rain or hail, as well as being shock and impact resistant.
 6. The shielded facility according to claim 1, wherein for having a height over 4 m to prevent the climbing to the solar panel zone.
 7. The shielded facility according to claim 1, further comprising a forced ventilation system which exhausts gas and heat through a longitudinal 16-inch fan placed inside the shielded facility reaching all the way out into the environment, the exhaust will be located on the upper section of the shielded facility.
 8. The shielded facility according to claim 1, characterized for including a convection activated type of natural ventilation inside the bunker provided by two horizontal layers of 2 to 4-inch cylindrical cavities one at the bottom and other at the top. 